Costco Wholesale Corporation (COST) closed at $956.11 on August 27, 2026, a decline of 0.41% over the prior 24 hours. The move extended a quiet stretch for the stock, which has shed just 0.09% over the past seven days.
Despite the near-term softness, Costco shares have managed a gain of 0.46% over the trailing 30-day period, suggesting the broader trend has remained relatively stable. The company's market capitalization stood at $425.74 billion as of the close.
Costco is one of the largest retailers in the United States, operating a membership-based warehouse club model. Its market capitalization reflects its continued standing as one of the most valuable companies in the consumer staples sector.
Trading activity over the past month points to a largely range-bound environment for the stock, with modest fluctuations in either direction but no significant directional breakout recorded across the three measured timeframes.



